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Amenable covers and integral foliated simplicial volume (2112.12223v2)
Published 22 Dec 2021 in math.GT and math.DS
Abstract: In analogy with ordinary simplicial volume, we show that integral foliated simplicial volume of oriented closed connected aspherical $n$-manifolds that admit an open amenable cover of multiplicity at most $n$ is zero. This implies that the fundamental groups of such manifolds have fixed price and are cheap as well as reproves some statements about homology growth.
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